refactor to backward compatibility

Author: Nazar65

app/code/Magento/Backend/Controller/Adminhtml/Denied/Index.php

@@ -0,0 +1,28 @@
+<?php
+/**
+ *
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Backend\Controller\Adminhtml\Denied;
+
+use Magento\Backend\Controller\Adminhtml\Denied;
+use Magento\Framework\App\Action\HttpGetActionInterface as HttpGet;
+use Magento\Framework\App\Action\HttpPostActionInterface as HttpPost;
+
+/**
+ * Denied Action
+ */
+class Index extends Denied implements HttpGet, HttpPost
+{
+
+    /**
+     * Check if user has permissions to access this controller
+     *
+     * @return bool
+     */
+    protected function _isAllowed()
+    {
+        return true;
+    }
+}

app/code/Magento/Backend/Controller/Adminhtml/Index/Denied.php

@@ -349,7 +349,7 @@ public function findFirstAvailableMenu()
             if ($user) {
                 $user->setHasAvailableResources(false);
             }
-            $action = '*/*/denied';
+            $action = '*/denied';
         }
         return $action;
     }

app/code/Magento/Backend/Model/Url.php

@@ -190,7 +190,7 @@ public function testFindFirstAvailableMenuDenied()
 
         $this->_menuMock->expects($this->any())->method('getFirstAvailableChild')->will($this->returnValue(null));
 
-        $this->assertEquals('*/*/denied', $this->_model->findFirstAvailableMenu());
+        $this->assertEquals('*/denied', $this->_model->findFirstAvailableMenu());
     }
 
     public function testFindFirstAvailableMenu()

app/code/Magento/Backend/Test/Unit/Model/UrlTest.php

@@ -1,7 +1,6 @@
 Magento\Security\Controller\Adminhtml\Session\Activity
 Magento\Security\Controller\Adminhtml\Session\LogoutAll
 Magento\Backend\Controller\Adminhtml\Denied
-Magento\Backend\Controller\Adminhtml\Index\Denied
 Magento\Backend\Controller\Adminhtml\Noroute\Index
 Magento\Directory\Controller\Adminhtml\Json\CountryRegion
 Magento\Tax\Controller\Adminhtml\Rule\AjaxLoadRates